IPC-TM-650 EN 2022 试验方法.pdf - 第95页

T able 2 T est Report on Solder Paste Enter appropriate information in top portion of report and complete report by entering the test results or checkmarks in the appropriate spaces. Inspection Purpose: QPL I.D. Number: …

1.0

Scope

This

test method is designed to determine the

maximum (average) solder particle size in a solder paste using

a fineness of grind gauge.

2.0 Applicable Documents

ASTM D-1210-79

Fineness

of Dispersion of Pigment-Vehicle

Systems

3.0

Test Specimen

least 100 grams of uniformly mixed

solder paste.

4.0

Equipment/Apparatus

Gauge-Hegman

Type CMA

185*, or equivalent, in accordance with ASTM D1210-79. A

hardened steel, stainless steel, or chrome-plated steel block

approximately 175 mm in length, 65 mm in width, and 13 mm

thick.

The top surface of the block shall be ground smooth and flat

and shall contain one or two grooves 140 mm in calibrated

length and 12.5 mm wide parallel to the longer sides of the

block.

Each groove shall be tapered uniformly in depth lengthwise

from a suitable depth (for example 50 to 100 micrometers) at

10 mm from one end to zero depth at the other with interme-

diate calibrations in accordance with the depth at these

points.

Scraper—A single- or double-edged hardened steel, stainless

steel, or chrome-plated steel blade 90 mm long, 38 mm wide,

and 6.4 mm thick. The edge or edges on the long sides shall

be straight and rounded to a radius of approximately 0.38

mm.

5.1

Test

5.1.1

Using

a fineness of grind gauge (Hegman) Type CMA

185 or equivalent in accordance with ASTM D-1210 deter-

mine the maximum and average particle size of the powder.

5.2

Evaluation

Acceptance

of each type of powder shall

be based on the specifications listed in Table 1. Enter the

results in Table 2 ‘‘Test Report on Solder Paste.’’

*Source:

Precision Gage & Tool Co. 28 Volkenand Ave., Dayton, Ohio

45410 513/254-8404

able 1

1st

4th Major

ype 1 160µm 150 µm 140 µm

Type 2 80µm 75 µm 65 µm

Type 3 50µm 45 µm 40 µm

Type 4 40µm 38 µm 35 µm

Type 5 30µm 25 µm 23 µm

Type 6 20µm 15 µm 15 µm

The

Institute for Interconnecting and Packaging Electronic Circuits

2215 Sanders Road • Northbrook, IL 60062

IPC-TM-650

TEST

METHODS MANUAL

Number

2.2.14.3

Subject

Determination

of Maximum Solder Powder Particle

Size

Date

1/95

Revision

Originating Task Group

Solder Paste Task Group (5-24b)

Material

in this Test Methods Manual was voluntarily established by Technical Committees of the IPC. This material is advisory only

and its use or adaptation is entirely voluntary. IPC disclaims all liability of any kind as to the use, application, or adaptation of this

material. Users are also wholly responsible for protecting themselves against all claims or liabilities for patent infringement.

Equipment referenced is for the convenience of the user and does not imply endorsement by the IPC.

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able 2 Test Report on Solder Paste

Enter appropriate information in top portion of report and complete report by entering the test results or checkmarks in the appropriate spaces.

Inspection Purpose: QPL I.D. Number:

Qualiﬁcation Manufacturer’s Identiﬁcation:

__ Quality Conformance A Manufacturer’s Batch Number:

Quality Conformance B Date of Manufacture:

Shelf-Life Extension Original Use-By Date:

Performance Revised Use-By Date:

Date

Inspection Completed:

Overall

Results: __ Pass __ Fail

Inspection Performed by:

itnessed by:

Inspections

User’s

Actual

Requirement Test Result P/F (*) Tested by & Date

Material

Visual

Metal Content

Viscosity

Solder Ball

Slump

Alloy

Flux

Powder Size

% In Top Screen

% In Next Screen

% In Bottom Screen

% In Receiver Bottom

Max. Powder Size

Powder Shape

Tack

Wetting

* P/F = PASS/FAIL; enter P if test results are within tolerance of actual requirement; otherwise, enter F

IPC-TM-650

Number

2.2.14.3

Subject

Determination

of Maximum Solder Powder Particle Size

Date

1/95

Revision

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Scope

This

method defines the procedure for determin-

ing the roughness or profile of metallic foils.

1.1

The

surface finish or roughness of foils shall be evalu-

ated using R

defined as the arithmetic average value of

all absolute distances of the roughness profile from the center

line within the measuring length.

1.2

The

foil profile of foils shall be evaluated using the

parameter R

(DIN)

or R

which is defined as the average

maximum peak to valley height of five consecutive sampling

lengths within the measurement length. This value is approxi-

mately equivalent to the values of profile determined from

microsectioning techniques.

1.3

(ISO)

is a different parameter from R

(DIN)

and is not

applicable to this method.

Applicable Documents

DIN 4768

ISO 4287

3 Test Specimens

Cut

a specimen 101 x 101 mm [4 x 4

in] minimum from the representative sample. The location and

number of specimens shall be defined in the material specifi-

cation.

Apparatus/Materials

4.1

Knife

or other suitable device.

4.2

Profilometer

or surface roughness meter with a motor-

ized drive and the following parameters:

Parameter Value

Cut Off 0.8 mm

Measuring Length 4.0 mm

Tracing Length <5 mm

Diamond Stylus Radius 0.005 mm

Roughness Parameter

per 1.1

ZDIN

per 1.2

Note: See Footnote No. 1 for equipment found suitable for

determination of both R

and

ZDIN

(or

4.3

Roughness Standard

Smooth

Side: R

with

5% or better certified tolerance

Treated Side: R

DZIN

(or

)

with 5% or better certified toler-

ance

4.4

Plate

glass or other smooth flat surface

4.5

Compressed

air

4.6

Gloves,

lint free

4.7

Tape

or weight

Procedure

5.1

Check

the profilometer calibration using the appropriate

roughness standard for the value R

ZDIN

)

and mag-

nitude to be measured. Insure the stylus moves perpendicular

to the grooves and the surface.

Note: For R

measurements,

known standards are available in

1, 3 and 10 micrometer nominal values. See footnote 2.

5.1.1

Compare

the values obtained on six different mea-

surements taken at different locations within the standard to

the certified (not nominal value) of the standard. If the average

result is not within 2% of the standard value, adjust the instru-

ment and repeat 5.1 until this tolerance is achieved.

5.2

Place

the foil test specimen on the plate glass surface

with the side to be tested away from the glass. Secure the

specimen with tape or a weight at both ends to prevent move-

ment or buckling during the measurement.

Profilometers which have been used to measure both R

and

are:

Surtronic 3 by Taylor Hobson (R

and

)

(see 8.2); M4P by Perthen (see 8.1) (R

and

ZDIN

Standards for R

DZIN

are

available from: see 8.1, PGN-3 3 micrometer nominal, PGN-10 10 micrometer nominal.

2215 Sanders Road

Northbrook, IL 60062-6135

IPC-TM-650

TEST

METHODS MANUAL

Number

2.2.17A

Subject

Surface

Roughness and Profile of Metallic Foils

(Contacting Stylus Technique)

Date

2/2001

Revision

Originating Task Group

Metallic Foils Task Group (3-12A)

Material

in this Test Methods Manual was voluntarily established by Technical Committees of IPC. This material is advisory only

and its use or adaptation is entirely voluntary. IPC disclaims all liability of any kind as to the use, application, or adaptation of this

material. Users are also wholly responsible for protecting themselves against all claims or liabilities for patent infringement.

Equipment referenced is for the convenience of the user and does not imply endorsement by IPC.

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ASSOCIA

TION CONNECTING

ELECTRONICS INDUSTRIES

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